Hyundai Sonata 06 engine runs key out ignition in off position

Hyundai Sonata 2006, 4 cylinders. On two occasions the engine has failed to stop after turning the key to the off position and removing from the ignition switch. While the engine was running none of the gauges operated and the transmission was licked. Engine stopped after I put the key back into the ignition switch 2-3 seconds later. Any suggestions regarding repairing this problem.

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Many times a cylinder will not turn when the steering wheel lock has pressure against it from the steering wheel. Wiggle the steering wheel while trying to turn the cylinder. If this is not the issue, the cover surrounding the steering column will have to be removed to access the cylinder.

Do you hear a click when operating the key ? if not I would suggest perhaps it is the starter solenoid not making contact and powering up the starter, the quick check is to employ the help of a friend, locate the starter ( make sure the car is out of gear or in park ) get your helper to hold the key in the start position and you tap the starter with a hammer or the like, if the engine bursts into life it's the starter, if not the chances are it's the switch, Be careful when doing this and be sure to keep clear of the fan an pulleys.

The 2003 Sonata is equipped with a 'starter KILL' burglar alarm system with disables the starting system (using a N/C 'contacts' configuration instead of a N/O contacts configuration). N/C=Normally closed, and N/O=Normally open contacts. When the alarm goes off with a MY Sonata, the only way to DISARM it is with the key fob (remote) originally programmed for it (unless you purchase a new remote & have it programmed for the vehicle at an authorized Hyundai Service Department). NOTE: So long as the keyless entry & burglar alarm system is functioning/operating normally, the alarm will keep going off and the STARTER KILL function will still prevent you from starting the vehicle. One option is left without purchasing a new remote and having it programmed. 1. When the alarm goes off, get into the vehicle and insert the ignition key into the ignition. 2. Turn the key to the 'RUN' position (NOT the ACC position) and wait for the alarm to STOP (usually about 3 to 5 minutes). 3. The engine should then start using the ignition key.

If this procedure doesn't work, the problem will need further diagnosis by a qualified/certified Hyundai Service Technician.

You are either not getting spark, or fuel or no compression in the cylinders, or your engine is flooded with fuel and cannot run because there is too much fuel and not enough oxygen to burn the fuel.
There are so many things that can cause these things that we cannot even begin to list them here, First you have to isolate the SYSTEM that is failing. (spark, fuel, or compression.) Then you must diagnose that system to locate the cause of the failure.

Autozone.com says that for this vehicle the firing order is 1-2-3-4-5-6 and the set-up is 2/1 4/3 6/5 meaning that the #6 cylinder is far right on the back. It goes #1 #3 and #5 in the front and #2 #4 and #6 in the back.

It should be the same general procedure as the 02. Open Glove box and remove contents. Remove glove box stops and or glove box shock on side. With the glove box swung out of the way remove the panel that covers the air filter. Remove and replace filter. Reinstall cover, and glove box stops.

Hi there
i have the same problem but mine is the sensor that is under the dash that is faulty so i had them disable it untill i can get a part that they need to order so i would have your dealer check the sensor .. if it is under warranty they will replace it for free